The MSM6690 can drive three devices of 131,072 x 8-bit EPROM or Mask ROM. The MSM6690 contains a built-in internal address generator circuit and one external clock input that enables contiued serial read operations. The internal address counter is automatically incremented by one each read operation. The external serial address input allows 1,024 words to be addressed in the X-direction, and 1,024 words in the Y-direction. *